11222505 has 48 divisors (see below), whose sum is σ = 23212800. Its totient is φ = 4904064.

The previous prime is 11222501. The next prime is 11222539. The reversal of 11222505 is 50522211.

It is not a de Polignac number, because 11222505 - 2² = 11222501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11222501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6471 + ... + 8019.

It is an arithmetic number, because the mean of its divisors is an integer number (483600).

Almost surely, 2^11222505 is an apocalyptic number.

11222505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11222505 is an abundant number, since it is smaller than the sum of its proper divisors (11990295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222505 is a wasteful number, since it uses less digits than its factorization.

11222505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 11222505 is about 3350.0007462686. Note that the first 3 decimals coincide. The cubic root of 11222505 is about 223.8875458609.

Adding to 11222505 its reverse (50522211), we get a palindrome (61744716).

The spelling of 11222505 in words is "eleven million, two hundred twenty-two thousand, five hundred five".